Wechat generates a temporary QR code with parameters. The user scanned it once, and the temporary parameters were the same on the second scan.

Today, when testing, we found that after generating the QR code for the first time, the user scanned the code for a temporary parameter, and the same user created a new parameter the second time, but Wechat returned the temporary parameter for the first time, making it impossible to judge the user"s behavior based on the temporary parameter after the second time. Could you tell me how to solve this?

Wechat-public-platform Wechat-develops php
May.14,2022

has been solved. Take random parameters according to event

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b2aeb4-2adb7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2aeb4-2adb7.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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